Sinuraya, Jeremia Septa Pratama (2016) Analisis Pengaruh Kapasitansi Terhadap Feroresonansi Pada Sistem Tenaga Listrik Menggunakan Diagram Bifurkasi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Feroresonansi merupakan salah satu fenomena transien dalam
sistem tenaga listrik yang dapat menyebabkan kegagalan pada isolasi
peralatan sistem tenaga. Feroresonansi dapat terjadi pada sistem yang
memiliki elemen yang bersifat kapasitif seperti kabel, kopling kapasitif,
switching serta adanya induktansi non-linier seperti trafo. Akibat paduan
tersebut, kejadian transien seperti switching atau petir dapat memicu
munculnya feroresonansi berupa tegangan dan arus lebih dengan tingkat
harmonik tertentu yang menerpa peralatan seperti Capacitive Voltage
Transformer (CVT)
Untuk memahami gejala feroresonansi diperlukan pembahasan
yang lebih mendalam khususnya tentang seberapa besar peluang
feroresonansi dapat terjadi pada sistem akibat pengaruh
komponen/elemen di dalamnya. Salah satu metode yang digunakan
adalah diagram bifurkasi, yaitu diagram yang menggambarkan seberapa
besar pengaruh elemen kapasitansi terhadap gejala feroresonansi yang
dapat terjadi.Pada tugas akhir ini digunakan software komputasi
MATLAB untuk mengolah data yang dihasilkan dari simulasi model
rangkaian feroresonansi. Hasil simulasi menunjukkan feroresonansi yang
dipicu oleh impuls petir terjadi pada range Csaluran 0,001-0,07 μF.
Feroresonansi akibat switching CB muncul pada range Cg 0,001-0,76 μF
dan Cs 0,51-3 μF. Sedangkan feroresonansi akibat hubung singkat muncul
pada range 0,001-3 μF.
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Ferroresonance is one of transient phenomena in electric
power systems that can lead to failure of the power system equipment
insulation. Ferroresonance can occur on systems that have capacitive
elements such as cables, capacitive coupling, switching equipments and
the existance of non-linear inductance such as transformers. Due to this
combination, a switching transients or lightning strikes can trigger
ferroresonance disturbance and generate a voltage and current
harmonics over a certain level that hit equipment such Capacitive Voltage
Transformer (CVT).
A deeper analysis in needed to understand the symptomps of
the ferroresonance specifically about how likely ferroresonance may
occur due to the influence of components / elements on systems. One
method generally bifurcation diagram. This diagram illustrating how
much influence the capacitance element against ferroresonance
symptoms that can occur. In this final project, a computation tool
MATLAB is used to process data generated from the ferroresonance
circuit simulation model. The simulation results show that ferroresonance
triggered by lightning impuls occurs at the range of line capacitance
0,001-0,07 μF. Ferroresonance caused by switching impuls occurs at the
range of Cg 0,001-0,76 μF and Cs 0,51-3 μF. Meanwhile ferroresonance
caused by line-to-ground short circuit occurs at the range of line
capacitance 0,001-3 μF
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.319 24 Sin a |
| Uncontrolled Keywords: | Feroresonansi, Capacitive Voltage Transformer (CVT), Induktansi Non-linier, Kapasitansi, Diagram Bifurkasi |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | ansi aflacha |
| Date Deposited: | 20 Jan 2020 02:42 |
| Last Modified: | 20 Jan 2020 02:42 |
| URI: | http://repository.its.ac.id/id/eprint/72742 |
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